Threaded Flange | Pipe Flanges

Threaded Flange technical overview.

Threaded Flange from JINYI is specified by its application, material and connection or drawing requirements. Review the selection schedule and enquiry requirements below to prepare a quotation for your project.

Specification basis: The schedule below distinguishes industry geometry from order-specific requirements. Final dimensions, performance and price are defined in the approved quotation and drawing. Photographs identify the product family.

What is a threaded flange?

A threaded flange connects to a pipe through an internal thread and presents a bolted flange face at the equipment or piping interface. The threaded bore distinguishes it from a slip on or socket weld connection.

Key dimensions and installation fit

Specify the flange drilling and female thread as separate requirements. A 4-inch pipe designation does not identify the female thread form, thread tolerance or sealing method. PN16 and Class 150 dimensions must not be combined into one connection. Compare related configurations: threaded pipe union, slip on flange.

How to specify the threaded flange

Specify the exact thread system, size, taper or parallel form and sealing method. A nominal pipe size does not establish whether NPT, BSPT or another thread will mate correctly. Match the flange facing and drilling to the adjoining component.

Check the mating flange's outside diameter, drilling, facing and gasket arrangement together. Nominal size describes the pipe family, while the measured diameters define the physical interface. A PN or Class designation has a material-dependent pressure-temperature basis; it is not a universal working pressure in bar.

Technical data for the threaded flange

Sizes and dimensional requirements

Use the named standard for standardized interfaces and the controlled drawing for custom dimensions. Confirm units, diameter datums, minimum finished thickness and any mating-component requirements. A catalogue dimension is not a universal tolerance, capacity or pressure rating.

Dimensions and tolerance schedule

Individually toleranced dimensions and functional requirements take precedence over a general tolerance note. Specify the governing standard and acceptance method in the order documents; a tolerance shown by another manufacturer does not establish JINYI manufacturing capability.

Materials, inspection and documentation

Measure the bore or thread, overall height, flange thickness, bolt circle and hole pattern. Inspect the gasket seating face for damage and specify its finish. Verify the material designation and marking against the order. Include the gasket and bolting specification when defining the complete assembled joint.

State the exact material designation and supplied condition, the controlled drawing revision and the required inspection reports before ordering. Separate material certification from dimensional checks and functional or pressure testing. Agree the acceptance limits for the ordered component and identify any additional witnessing, marking or packing requirements. For production steps and inspection considerations, see flanges and fittings manufacturing.

Installation and handling guidance

Check engagement, thread condition and the approved sealing arrangement. Align the piping without forcing the thread or using the flange bolts to correct a badly fitted connection. Suitability for cyclic, corrosive or high-temperature service requires engineering review.

Where the threaded flange is used

• Process pipework. Detachable connections between piping, valves and equipment.
• Equipment nozzles. Drawing-matched interfaces for the connection standard and facing.
• Maintenance. Replacement components selected by dimensions and material, with access for assembly.

How to order a threaded flange

Send the required configuration, material, quantity, destination and controlled drawing to JINYI. Identify changed dimensions, mating components, operating conditions and inspection scope. For a repeat order, include the previous approved revision and state any changes. The final quotation defines the supplied geometry, documentation, price and delivery terms.

Quantity prices and order preparation

Indicative budget pricing selected from public supplier listings. Selected lower amount from a US$10–100 threaded-flange family listing; grade, thread and flange standard affect the quotation. Jicheng threaded flange listing. Final JINYI pricing depends on the confirmed specification, quantity, inspection and delivery scope. Quantity-specific terms are confirmed with the final quotation.

Engineering and pricing references

Petromat EN 1092-1 type 13 reference; ASME B16.5 scope. These sources explain the named product geometry or selection method. Their certifications, rated capacities and manufacturing capabilities belong to the named organizations.

Other JINYI products worth comparing

Review the industrial pipe flanges catalog for adjoining components, connection choices and alternative product forms.

Request a threaded flange quotation from JINYI with the drawing, material and quantity required for your project.

Threaded Flange selection and quotation checklist

The threaded bore replaces a welded attachment at the pipe interface. State the thread form and mating pipe details explicitly; nominal size does not establish thread compatibility. Use the photographed product form to identify the arrangement, then use the controlled drawing to define what will be supplied. Similar-looking components can have different end details, load paths or maintenance requirements.

Threaded Flange dimensions and tolerances

The first comparison for this threaded flange is thread standard and bolt pattern. Mark the dimensions that control mating, alignment and installation space on the enquiry drawing. Give units for every value and identify the datum from which it is measured. If a dimension is critical, specify its individual tolerance and measurement method rather than relying on a general tolerance note.

Specify the flange drilling and female thread as separate requirements. A 4-inch pipe designation does not identify the female thread form, thread tolerance or sealing method. PN16 and Class 150 dimensions must not be combined into one connection. Review the selection schedule together with the final drawing and inspection requirements.

Prepare the material and interface information

For a threaded flange enquiry, identify the required material designation and supplied condition. Describe the mating components, attachment method and environment. Include the operating temperature and any relevant pressure, movement or structural load. These inputs should describe the actual installation, including changes between normal operation, start-up and maintenance where applicable.

Specify coatings, surface finish and marking separately from the base material. If traceability is needed, identify the record required and how it must correspond to the delivered component. Agree whether inspection covers dimensions, material documentation, welds or functional testing; these are different checks with different acceptance criteria.

Custom threaded flange quotation

Attach the latest drawing revision, required quantity and delivery destination when contacting JINYI. Highlight departures from the illustrated arrangement, including changed dimensions, connections, finish and packing. For repeat orders, reference the approved configuration and list changes explicitly so an earlier drawing is not assumed to remain current.

Compare quotations using the same geometry, grade, supplied condition, unit of supply and inspection scope. A piece, a segment and a complete assembly can represent different quantities. Confirm quantity discounts and delivery terms with the final quotation.

Compare related component arrangements

Evaluate this threaded flange by its actual thread standard and bolt pattern and the required pipe flange arrangement. The photographs below show separate JINYI products for comparison. They are linked to their own technical pages and are not additional gallery views of this threaded flange.

Related JINYI products — separate configurations to compare

Photo	Related product	Selection detail
	Slip On Flange	Bore clearance and hub height. Compare this separate product when the drawing requires its particular arrangement.
	Threaded Pipe Union	Thread form and assembly length. Compare this separate product when the drawing requires its particular arrangement.
	Weld Neck Flange	Hub geometry and pipe bore. Compare this separate product when the drawing requires its particular arrangement.

Questions to resolve before ordering

Which dimensions need checking first?

Start with thread standard and bolt pattern and the mating or mounting detail. Check nominal designations against measured dimensions, then review the installation envelope. Photographs help identify the form; the drawing provides the dimensional basis for acceptance.

What should the quotation include?

A threaded flange quotation should identify the configuration, drawing revision, material, quantity, price basis and agreed inspection records. Keep these details together with the approved order so receiving inspection can compare the delivered product with the specified component.

Independent terminology reference

ASME flange standard scope provides an independent reference for component terminology. Use the specified standard and edition where required by the project. This link does not establish JINYI certification, product approval or interchangeability with another manufacturer.

Spec

Defined configuration

Grade

Material requirement

US$10.00

Indicative unit price

3

Quantity bands

• Product arrangement — EN 1092-1 type 13 · thread specified separately
• Engineering selection — Specify the flange drilling and female thread as separate requirements. A 4-inch pipe designation does not identify the female thread form, thread tolerance or sealing method. PN16 and Class 150 dimensions must not be combined into one connection.
• Quotation scope — Material, drawing revision, quantity, inspection and delivery terms confirmed together